The main feature of log cabin - rather small weight. However it does not mean that for construction of the wooden building it is possible to ignore requirements imposed to the bases.
The choice of the base under the wooden building is generally connected with the analysis of soil on which the builder is going to put the house. In addition, the type of the base is influenced by weather conditions and financial opportunities of future owner of the real estate. There are several types of the base which are actively used at construction of timber structures.
Plate
This base is considered one of the most reliable that it is connected first of all with its solidity and the big area. Such base can be constructed practically on any soils, even without detailed geodetic research. Feature of the plate base – lack of deepening thanks to what the basis "floats" together with the house, i.e., movements of the soil do not influence structural strength in any way. For not heavy constructions, like bath or garage, the shed there is enough thickness in 10-15 cm. Under residential unit necessary thickness is 20-30 cm. Plate basis – one of the most expensive options of arrangement of the base.
Tape
Tape also belongs to the category of the most reliable. It is the monolithic construction located not under all building but only under load bearing walls. Feature of tape basis – solidity and isolation of contour. Such base under felling well holds loading on sandy, gravel or sand-gravel soil. It is desirable that on the place of laying of the base there was as little as possible moisture. It is simple to check it: it is enough to dig out hole of 1 m in depth (apart from fertile layer) and if there is no water, it is possible to start works safely. If nevertheless moisture is present, then it is necessary to deepen trench more calculated value and to use double layer of waterproofing.
Column and pile and screw
It is the most economic option; it is possible to use the metal or asbestos-cement columns already former in the use. However there are restrictions about which it is necessary to foreknow. You should not build the column base on slabonesushchy, mobile soil. Also the design will not approach if construction of the basement, the first floor is planned. The similar basis well approaches where the soil steady and exists some difference of relief – columns will help to level it. It is necessary to remember that support have to be driven lower than frost depth. The pile and screw base belongs to column type; the difference is that on the end of these piles there is cutting with blades which like the self-tapping screw helps column to be screwed in in soil. The established piles tie with metal "belt" by means of welding. The main advantage of the similar base – speed of construction. Reliability of basis depends on the quality of piles connected with their thickness, durability of metal and care of anticorrosive processing.